Device to prevent rolling of bobbins



Aug. 4, 1925.

' W. H. WAKEFIELD DEVICEv T0 PREVENT ROLLING OF BOBBINS mled Feb. 29

--lln illln Patented Aug. 4, 19275.

" UNITED STATES i reissen 4PATENT forties. j

WALTER'. WAKEEIELD, OF WORCESTER, MASSACHUSETTS, ASSIGNOR T0 CROMPTON A & KNOWLES LOOM` WOR-KS, OF'WORCESTER, MASSACHUSETTS; A CORPORATION 0F iinvcn'ro PREVENT ROLLING or BoBBiNs.

application filed rebruary 291924'.` seriai'iio. ceaoss.

To all eli/tomi?? maz/ concern: Y

, Vj Be it knownthat I, WALTER H. `INTAKE- FIELD, a citizen of the United States, residing at Vorcester, in the county of Worcester and State of .Massachusetta have invented a new anduseful'Deviceto Prevent Rolling of Bobbins, of which kvthe following `is a specification;

This invention relates to weft replenish-V ing mechanism forrlooms and more particularly to vimproved means for prevent-ing the rotation of bobbins on their axes as they await transfer. y Y y i In my zo-pending application, Serial No.

A695,883 there is shown a pair of bobbin compartments between which' is located an angularly movable wall under Acontrol of the weft replenishing mechanism and so disposed as toV exert lateral pressure' against the buttsr of the bobbins to force the-m against the xedA walls of the compartments.

i rThe purposeof this construction is to preventrolling ofthe bobbins on their axes, as such rotation has-been found to entangle the lling ends extending to the thread holder with the result that breaks are likely to occur at the time of transfer. In order to p-rovide for inaccuraciesin the diameters of the bobbins, themovable wall in said appli- $0 cation-is shown as being provided with a yielding. covering Which'vis deformable, to engage the bobbins irrespective of their slight variations.

"'s the` principal object of my present invention to improve upon the bobbin engaging means byproviding a separate yieldable device tofrictionally engage each bobbin individually to prevent rotation thereof.. Accordingly,fI have'provideda movable wall Vwith a plurality of springsections each positioned for engagement with a 'bobbin and allmovable'out of bobbin engaging position when thereplenishing mechanism calls for afresh bobbin to be inserted in therunning o shuttle so that the bobbins maybe free to fal1.- y y With this general object and others which lwill appear as the description proceeds,'my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings wherein I have shown one form of my invention,

Fig. 1 is a side elevation of part of a replenisliing mechanism having my invention applied thereto as viewed from the center of the loom, v Y

jFig. 2 is a vertical sect-ion taken on line 2- 2of Fig. 1, i

. qFig. 3 is an enlarged horizontal section taken on line 3-3 of F 1,

Fig. 4 is a view similar to Fig. 3 b ut showing the movable wall in a diifereiit position,

and 3 Fig. 5 is a detail view showing a portion of the movable wall. s

Referring more particularly to Fig. 1 it will be seen that the replenishing mechanisin comprises a frame 10 upon which vis guided the vertical slides V4lland 12, the lower ends of which control cradles 13 and 14 `for the purpose of advancing fresh bob,-

bins to transfer position. `The vertical .vv

slides are provided with upper and lower bosses. 15 and 16, respectively, positioned for operation by an angularly and longitudinally movable rod 17 which is guidedin bearings 18and has fastened thereto a slide actuation linger 1.9 as indicated in Fig. 2.

A bearing block 20 heldto the frame 1() by bolt andslot connections toyafford horizontal adjustment has. formed therein a bore 21 which lreceives the upper pin 22 of movable wall 23. The lower end of the wall is supported yon apin 24 which is fastened tothe frame 10, and has an upbent` end 25 which is received ina. bore 26 formed in the wall. Extending from wall 23 at a point intermediate the ends thereof is an arm27 to which issecured a cam plate 28 riveted or otherwise secured thereto. Y

Extending upwardly from the slides 11 and 1 2 are fingers-'29 and v30, respectively,

which arev positioned 4for engagement with the cam plate28 as the slides rise. A spring 3l extends between a fixed part of lthereplenisliing'mechanism and the plate 28 and serves normally to hold thewall inthe position shown in 3. As the slides 11 andr12 are raised the corresponding fingers engage the cam plate to move the same to vthe position shown in Fig. 4 against the ac.-

tion of spring 81, thus releasing the bobbins so they may fall in the compartments. rPhe latter thus far described is substantially as shown in Patent No. 1,030,740 and my aforesaid pending applic-ation.

My present invention relates more particulai-ly to the construct-ion of the bobbin engaging portions of the Wall 23 whereby each bobbin may be provided With an individual yielding friction member Which is independ- 5,1 have provided a pair of ieXible` strips IlOtiind 4l formed of spring steel or other suitable material. lThese strips fare providedpwith transverse slits 142 and 43, respec'# tively, so placed as to define bobbin;l engaging portions `lllandt respectively, the slits preferably lying vintermediate `the, bobbins l l lsothat eachbobbin will be provided-With an engaging section. The slitsdonot ex# tend` entirelyr across vthe flexible strips, but terminate near one edge as indicated in Fig.

, y 5. I do not Wish to be limited tothe length ofthe. slitsv as the "purpose of the present to attach tlierstrips lOandtl to the Wall-23.

invention will be carriedV outl if'the bobbin engaging sectionsjr are independently movable."fRivets 46 or fother means may be used Under 4"normal conditions the vertical slides arev iny the position indicated in' Fig. l andthe several bobbin engaging sections 4A and L5- are held in Contact with their respective bobbins by spring' 3l. The bobi n bins laie thus `held againstthe iixedvvalls 4T' and 48 respectively V'so that rotation' on their axes iseiectively prevented. Upon indication ofweftlexhaustion one Vor the other of Y the slides will be raised by linger l9`sotliat i tl'ie'cam plate 28 Will be movedto t-he right as shown in Fig. 4, the result of which Will be tomove theWallsectionsaway `from the bobbinsq The bobbin Vengaging sectionstl and 45arethus moved to release Athe bobbins softhatthey may descend in the compartev ments `^formed between .the movable lWalls andy fxedivalls 47 and 48. 'y When transfer is called for theslide which Was previously raised Willbe lowered and-spring 3l will `again" restore the parts to the position v shown inligtfA Y ,It Will be seen from tlie'foregoingthat l have provided a very simplemeansiunder controljof the replenishin'ginechanisni for applying pressure-"against each" bobbin so that although the various bobbins mayof diiferent diameters yet all Willbe restrained agaiiistrotation and the undesirable tangling 4 ofthe ends which extend to the thread holder prevented. It isto 'be understood be in alignment so as not to interfere with that when the Wall is moved to release the bobbins, all ofthe portions 44 and45 will so the proper fallingor' the `sbobbins."v ,vill Vbe further noted that the mounting-for the upper end of the movahleyvallpermits adjustment thereof With respect to the fixed Walls to" provideffonproper setting of said movable Wall.

Having-thus described my invention it Will be apparent that changesand modifica.- tions may be` madevtherein by `thoseskilled inthe art Without departing lroni y'the spirit and scopeQof the" invention and IyfdLL frlot ivish` to be limited tofthe-dtailsl erein disclosed,"biit ivliatTclaimisl:` 5 e l l.v VIn a replenishiiig `iiiecliaii'ism"for looms',

a bobbin'compartmenthaving anitdftvall, 75

,and means under control ofQtherepleiiifslf ing mechanism td present asuirffae `havin ai 'pluralityA of independentlyldeformbe portions to the bobbins to` engage thf latter and' move the "same against the fixed wall".

2. In a weft replenishing mechanism looms,f`a ,bobbiny compartment, andfmens providing a series "oit surfaces 'yielda s dependently of eachotheij'to engagefan sist Vrotation ofthe bobbins,4 all' 'Said siii-fac being under control of thel replenishi" mechanism. i 'lna'iveft replenisl'iingmechanisln looms, aA bobbinV compartment` havingfa "liked Wall, a movableA i'valliindery contolfof lthe" lHlplenishing mechanism,L and I'rieansl associated ivitli the movable ivallfor presenti ap1u`- rality-f of Hseparately yyieldablfe suiice to the bobbinsur@ p L LIn a weft'replenishingmechanism"for looms," 'a A pair` of `bobbin compartments, movable Wall between (said compartments, y, and means carried the Wall l 'and lnder control ot" the replenis'hing "iinechaismto presentan independent-ly :yielding friction surface to each bobbin of""looth,`fio'lllpinit`v` menisfto prevent retentir ofllilg f `tid bobbins.`v` l' ,v V 5. "Inf'a fwleft replenisliing`^meohanisr``- or looms, a pair ofbobbinE cmpa'rtinent's, pivoted" device common to*i both 'emparti p ments, *and means ycarried the ,devicf to i presenta vplurality of rindependently `yieltlable surfaces to thebobbineof'botlrcoi#I partment's. 1 f" "In testimony whereof l hav fixed my signature@ 

